Sulfur-burner.



` W/ rye-.fafa

A. G. HINZKIE.

SULFUR BURNER- APPLICATION FILED MAY 7. 19.14.

2 SHEETS-SHEET l.

.24 I I .f2

` Patented Aug. 10, 1915.y

@hmwmwf C,

' HTTP/Vfjl A. G. HINZKE.

SULFUR BURNER.

APPLICATION FILED MAY7.1914.

1,149,765. Patented-Aug. 10,1915.

Z i 2 SHEETS-SHEET 2- 727 2mm, MM5QW` ALBERT GUSTAV HINZKE, OF ROTHSCHILD, WISCONSIN, ASSIGNOR T VALLEY IRON WORKS COMPANY, OF A PPLETON, WISCONSIN, A CORPORATION OF WISCONSIN.

SULFUR-BURNER.

Specicaton of Letters Patent.

Patented Aug. IO, MM5.

Application filed May 7, 1914. Serial No. 837,046.

To all whom it may concern Be it known that I, ALBERT G. HI'NZKE, a citizen of the United States, and resldent of Rothschild, in the county of Marathon and State of Wisconsin, have invented new and useful Improvements in Sulfur-Burners, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification. 0

The invention relates to improvements 1n sulfur burners.

In the paper making art sulfurous acid is used for cooking the wood into pulp used in making the paper and many forms of sulfur burners have been devised for burning sulfur in the process of forming the sulfurous acid.

One type of burner known as the rotary7 burner in which the sulfur is burned in a revoluble drum, requires considerable power to operate the same and also considerable difculty has been experienced in automatically charging the drum with sulfur with the result that most oftthe burners of this type now in use are fed or charged by hand. In charging by hand too much air is permitted to enter the drum with the result that the gas formed is not of the proper strength, and if the sulfur should be somewhat damp sulfuric acid would be formed in the burner causing a great loss in sulfur and wearing the burner out. f

Another type of burner known as the lat burner has also been used but has not been found satisfactory, due to the fact of its limited capacity and also on account of the fact that the impurities contained in the sulfur tend` to rise to the top and remain on the surface of the burning sulfur and form a coating which deadens the fire and requires continuous stirring or mixing of the melted sulfur to cause it to continue to burn. The flat burner is also usually charged by hand and consequently too much air is admitted to form the gas of proper strength. l

The two mentioned types of burners possessed many other serious features which were objectionable and the burners lacked the efficiency desired.

It is one of the objects of the present invention to overcome the before mentioned objectionable features and provide a sulfur burner having a plurality of sulfur holding trays or pans within an inclosure and in which the sulfur is adapted to burn and overflow from one holding tray or pan to another.

A further object of the invention is to provide a sulfur burner in which the sulfur is melted and kept in a liquid state by the heat generated by the sulfur burning in the trays positioned beneath the receptacle holding the sulfur supply.

A further object of the invention is to provide a sulfur burner in which the feed of sulfur to the trays may be regulated to form a continuous automatic feed to the different trays.

A further object of the invention is to provide a sulfur burner in which the impurities contained within the sulfur are caused to overflow from the different trays and to be discharged into the bottom portion of the inclosure.

A further object of the invention is to provide a sulfur burner having means for controlling the admission of air to each fire tray whereby the `supply of fresh air necessary for the combustion of the sulfur and the formation of the sulfurous gas will be complete.

A further object .of the invention is to provide a sulfur burner in which the flow of the sulfur from tray to tray is in a direction opposite to the direction of draft of the air thus producing very rapid combustion of the sulfur and the formation of sulfurous g A further object of the invention is to provide a. sulfur burner with a supplemental combustion chamber wherein provision is made for `supplying air to the sulfurous fumes flowing therethrough to subject the fumes to a final burning so that the combustion will be complete and the resultant gas will be clean and free from impurities.

A further object of the invention is to provide a sulfur burner which is of simple constructiomis strong and durable and is well adapted for the purpose described.

With the above and other objects in view, the invention consists of the improved sulfur burner and its parts and combinations asset forth in the claims, and all equivalents thereof.

In ythe accompanying drawings in which the same reference characters indicate the same parts in all of the views: Figure 1 is a vertical sectional view of the improved sulfur burner; Fig. 2 isa front view of the improved sulfur burner; and Fig. 3 is a detaill top view, on a smaller scale of one of the ire trays or pots removed from the inclosing casing.

Referring to the drawings the numeral 5 indicates the casing or inclosure forming the combustion chamber 6 which is of annular form closed at its top and bottom portion and is lined with fire brick 7 to withstand the heat. The chamber is divided vertically into a plurality of compartments 8 by annular horizontally-extending partitions which form the re trays or pans 9 of the combustion chamber. The trays have depressed medial portions 10 for holding the sulfur and also have semi-circular lines of perforations 11 adjacent to their peripheral edges which permit the air for combustion and the sulfurous gases to flow upwardly therethrough. The trays 9 are of less diameter than the inner diameter of the casing 5 and the peripheral portions of the trays are positioned between the lines of the ire brick so that the trays may freely expand and contract without injury to the parts.

In order to cause the air and gases to circulate back and forth overA the lire trays, the semi-circular lines of perforations of each tray are staggered with relation to the line of perforations of the adjacent trays, that is to say, the perforations of the lowest tray are positioned in the rear portion of the chamber and in the tray next above the perforations are in the front portion ofthe chamber thus continuing back and forth to the upper tray.

The front portion of the casing is provided with an air inlet opening 12 for each compartment and each opening is controlled by a hinged door 13 which may be swung to adjusted position and held in said position by means of a pin 14 extending through one of a series of perforations 15 formed in the side portion of the opening framel.' The doors are provided with small openings 17 covered by revoluble damper doors 18 which may be opened to view the condition of the burning sulfur on the trays in order to adjust the draft of the doors.

A sulfurl charging receptacle 19 supported by and mounted on the upper portion of the combustion chamber casing has its conical bottom portion 20 extending centrally into the chamber andat its lower end is provided with a discharge opening 21 which is controlled by a needle valve 22. The upper end of the valve has a threaded engagement 23 with the cover 24 and is provided with a hand wheel 25 forpadjusting thepsame.

The charging receptacle 19 extends sif vciently far into the combustion chamber to be in the path of circulation of the hot gases to receive the heat therefrom so that the sulfur(y placed within the receptacle will be reduced to a molten mass and will freely flow through the discharge opening of the receptacle and into the central portion of the upper pan when 'the valve is adjusted to open position.

An outlet pipe 26 connected to the upper portion of the combustion chamber easing 5 is provided with an enlargement at its upper end to form a supplemental combustion chamber 27 through which the gases pass and undergo a final combustion. The upper end portion of the outlet pipe is provided with a circumferential line of elongated air inlet openings 28 through which air enters to complete the combustion of the sulfur. The flow of air through the elongated air inlet; openings 28 is controlled by means of a sleeve valve 29 which surrounds the supplemental chamber and is provided with a series of elongated openings 30 which may be moved into register with the elongated lopenings of the said chamber.

A platform 31 guarded by a hand rail 32 extends around the upper portion of the combustion chamber and a ladder 33 extending from the Hoor to the platform provides for the operator climbing to a position to charge the sulfur receptacle and to control the needle valve and the sleeve valve.

In operation the sulfur receptacle is charged with sulfur and sufficient sulfur is placed on the upper tray and ignited to provide sufficient heat to melt the sulfur in the receptacle. As soon as melted the needle valve is turned to open position to permit the sulfur to How into the upper tray. The tray upon filling up will overflow and charge the next tray below and as soon as this tray is filled it will likewise overflow and charge the next and this overflowing of the dilferent trays will continue until all of the trays are charged vwith the burning sulfur.

By regulating the feed of sulfur with relation to the burning all of the trays may be kept supplied and the operation of burning may be made continuous and the feed automatic.

In burning the sulfur the air inlet doors communicating with the combustion compartments are regulated to supply the proper amount of air for combustion and the resultant gas and minute particles of material in traveling back and forth through the different compartments and over the burning sulfur and through the openings of the trays become completely gasified. As the sulfur flows downwardly and in the opposite direction from the upwardly moving air and gas As the sulfur travels downwardly, the impure or' foreign particles in the sulfur will rise to the top of the melted material and overliow the pans and be carried to the bottom portion of the combustion chamber where it may be easily removed thus providing for the automatic cleaning of the pans.

From the foregoing description it will be seen that the sulfur burner is of simple construction, is strong and durable and eliicient in operation and is Well adapted for the purpose desired. l

lVhat I claim as my invention is:v

l. A sulfur burner, comprising a combustion chamber having an outlet opening, a plurality of burner trays within said chamber positioned, one above the other in spaced relation and being loosely connected to the wall of the chamber, said trays havingl medial depressed portions and means for permitting the overflow of material there-v from to the tray immediately therebeneath, said chamber having controlled air inlet openings for the spaces between the trays, and a sulfur supply receptacle mounted in the upper portion of the combustion chamber and having a portion extending centrally into the chamber and into the direct path of travel of the products of combustion.

2. A sulfur burner, comprising a combustion chamber formed of an outer metal casing and inner fire proof lining sections and having an outlet opening, a plurality of burner trays Within said chamber positioned one above the other in spaced relation and having their edge portion loosely positioned between some of the lining sections and spaced from the outer casing to permit the free expansion and contraction of said trays, said trays having medial depressed portions and means for permitting the overflow of material therefrom to the tray immediately therebeneath, said chamber having a con* trolled air inlet opening for each space between the trays, and a sulfur supply receptacle mounted in the upper portion of the combustion chamber and having its lower portion extending centrally into the chamber and into thev direct path of travel of the products of combustion, said supply receptacle discharging its material centrally of the upper tray.

3. A sulfur burner, comprising a combustion chamber formed of an outer metal casing and inner fire proof lining sections and having an outlet opening, a plurality of burner trays within said chamber positioned one above the other in spaced relation and having their edge portions loosely positioned between some of the lining sections and spaced from the outer casing to permit the free expansion and contraction of said trays, said trays having medial depressed portions and openings near their peripheries to permit the overflow of material from the trays and the passage of air and gas therethrough,

the openings of one tray being staggered -i tral portion of the upper tray, said lower portion of the supply receptacle extending directly into the path of travel of the products of combustion.

4. A sulfur burner, comprising a circular combustion chamber formed of an outerv metal casing and an inner lining of lire brick and having an outlet opening, a plurality of circular burner trays positioned within the chamber and having their peripheral edge portions-extending loosely between the lines of fire brick and spaced from the innersurface of the outer casing, said trays having medial depressed portions with sloping side walls and also hav-ing semicircular lines of perforations adjacent their peripheral edges to permit the overflow of material from the trays and the passage of the products of combustionl therethrough, said lines of perforations of each tray being staggered with relation to each other, said trays dividing the chamber into a plurality of compartments and said chamber having a controlled airinlet opening for each compartment, a sulfur supply receptacle mounted in the upper portion of the chamber and having a conical bottom portion with a vdischarge opening,.said bottom portion extending centrally into the chamber and in the path of flow of the products of combustion and receiving the heat therefrom and said discharge opening positioned to discharge its material into the depressed portion of the upper tray, and a valve member controlling the flow of material through the discharge opening of the receptacle.

5. A sulfur burner, comprising a circular combustion chamber having a gas outlet opening, a supplemental combustion chamber in communication with the discharge outlet of the first mentioned combustion chamber, plurality of circular burner trays positioned one above the other in said chamber and having openings to permit the passage of air and gas therethrough, said trays dividing the chamber into a plurality of compartments and having medial depending conical portions extending into the compartments, the combustion chamber being provided with an air inlet opening for each compartment, means positioned directly in the path of flow of gases from the trays, and means controlling said air inlet openings.

6. A sulfur burner, comprising a circular combustion chamber having a gas outlet opening, a supplemental combustion chamber in communication with the discharge outlet of the first mentionedv combustion chamber, a plurality of burner trays positioned one above the other in said chamber and having semicircular lines of openings to permit the passage of sulfur and air and gas therethrough, said trays dividing the chamber into a plurality of compartments and having medial depending portions extending into the. compartments, the lines of openings of one tray being staggered with relation to the lines of openings of adjacent trays, said combustion chamber being provided with an air inlet opening for each compartment, doors for said inlet openings, means for adjustably holding said doors in open position, and means for supplying the trays with the material to be burned and causing it to move in a direction opposite to the direction of the movement of the air and gas.

7 A sulfur burner, comprising a circular combustion chamber having a gas outlet opening, a supplemental combustion chamber communicating with the discharge open ing of the combustion-chamber, a plurality of burner trays positioned one above the other in said combustion chamber and dividing said chamber into a plurality of compartments, said trays having a depressed medial portion and a semicircular apertured side portion, the semicircular apertured side portion of one tray being staggered with relation to the apertured side portions of the adjacent trays, the combustion chamber having an air inlet opening for each compartment, doors for said openings, means for holding the doors in adjustedposition, a sulfur supply receptacle mounted in the upper portion of the combustion chamber and having a depending portion positioned to be heated by material burning in the trays below and directly in the path of flow of the gases rising from lsaid material, said receptacle having a discharge opening provided in its lower portion which discharges material centrally into the upper tray, and a valve controlling the discharge of sulfur therefrom.

8. A sulfur burner, comprising a circular combustion chamber having a gas outlet opening, a supplemental combustion chamber communicating with the discharge opening of the combustion chamber, means controlling the admission of air to the supplemental combustion chamber, a plurality of annular burner trays' positioned one above the other in said combustion chamber and dividing the said chamber into a plurality of compartments, said trays having a depressed medial portion and a semicircular apertured side portion and being -loosely supported by the chamber wall, the semicircular apertured side portion of one tray being staggered with relation to thesemicircular apertured side portions of the adj acent trays, the combustion chamber having an air inlet opening for each compartment, doors Ifor said openings, means for holding the doors in adjusted position, a sulfur supply receptacle mounted in the upper portion of the combustion chamber and having a depending portion positioned to be heated by material burning in the trays below and directly in the path of flow of the gases rising from said material, said receptacle having a discharge opening provided in its lower portion, and a valve controlling the discharge of sulfur therefrom.

9. A sulfur burner, comprising a combustion chamber having air inlet and gas outlet openings, a plurality of burner trays positioned one above the other in said chamber and having semicircular lines of apertures in staggered relation to permit material to flow from one tray to another and in a direction opposite to the direction of movement of the air and gas flowing through said chambers, means positioned directly in the path of movement of the gas rising from the chambers for supplying material to said trays, a supplemental combustion chamber communicating with the outlet opening of the combustion chamber, said supplemental chamber having air inlet openings, and a valve controlling said inlet openings of the supplemental chamber.

In ,testimony whereof, I affix my signature, in presence of two witnesses.

ALBERT GUSTAV HINZKE.

Witnesses:

GEO. H. PEERENBOOM, E. A. PETUSINE. 

